Assessing the relevance of top-down and bottom-up effects as phytoplankton structure drivers in a subtropical hypereutrophic shallow lake

Frau, Diego; Battauz, Yamila S.; Alvarenga, Patricio; Scarabotti, Pablo Augusto; Mayora, Gisela; Sinistro, Rodrigo

doi:10.1007/s10452-019-09687-3

Cited by 18 publications

(6 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This fish is very resistant and can remain alive out of the water for long periods because they have a high vascularity in the stomach that allows greater oxygenation (Almiron, Casciotta, Ciotek, & Giorgis, 2015). Both populations analyzed inhabit eutrophic lentic environments, characterized by nutrient enrichment and low levels of dissolved oxygen (Frau, Mayora, & Devercelli, 2018;Frau et al, 2019). Urban wetlands tend to accumulate pollutants due to their proximity to human activities and because they are used to filter the generated waste (Hassall, 2014).…”

Section: Discussionmentioning

confidence: 99%

Endoparasites of Hypostomus commersoni (Siluriformes, Loricariidae) from two shallow lagoons, Argentina

Rossi

Chemes

2022

Acta Sci. Biol. Sci.

View full text Add to dashboard Cite

Hypostomus commersoni is a freshwater fish, native to the Paraná River basin, which plays an important role in trophic networks of this system. This study aimed at analyzing the structure of the endohelminth community of H. commersoni from two shallow lagoons in the municipality of Santa Fe, Argentina. In the 51 hosts analyzed, 2103 helminths were found. Hosts from Belgrano Park lagoon were infested with Genarchella genarchella, Saccocoelioides nanii, Raphidascaris (Sprentascaris) sp., and Gorytocephalus elongorchi. Hosts from the Western Urban Nature Reserve lagoon were infested with Thometrema magnifica, Procamallanus (Procamallanus) annipetterae, Raphidascaris (Sprentascaris) sp., Gorytocephalus elongorchi, and Proteocephalidae spp. In both host populations, the prevalence of some parasites was high, and species richness and diversity of component communities were low. The distribution pattern of helminth was aggregated in all cases. No correlation was found between the length of the host and the richness and abundance of endoparasites. The total number of parasites and the specific richness per host in both lagoons did not differ significantly. The findings on G. genarchella, P. (P.) annipetterae, G. elongorchi, and Proteocephalidae spp. were the first records in his host

show abstract

Section: Discussionmentioning

confidence: 99%

Endoparasites of Hypostomus commersoni (Siluriformes, Loricariidae) from two shallow lagoons, Argentina

Rossi

Chemes

2022

Acta Sci. Biol. Sci.

View full text Add to dashboard Cite

show abstract

“…It shows that zooplankton tends to be dominated by small-sized individuals, particularly rotifers and copepods nauplii (\ 700 lm of MLD), throughout the year. Copepoda adults or large Cladocera has been reported during the winter or during the early spring when fish biomass is lower, or in those environments where was a low fish stock density (e.g., Scasso et al, 2001;Jose ´de Paggi & Paggi, 2007, 2008Iglesias et al, 2008Iglesias et al, , 2011Sosnovsky et al 2010;Frau et al 2013Frau et al , 2019. In an insightful study performed by Costa Bonecker et al (2012) in eight shallow lakes linked to the upper Parana ´River (Brazil), they reported changes in zooplankton size structure regarding the presence of planktivorous fish in two seasons (rainy and dry seasons).…”

Section: Methodsmentioning

confidence: 99%

“…These changes were accompanied by low phytoplankton biomass. In Frau et al (2019), we reported a high density (between 320 ind 100 m -2 in winter and 1018 ind 100 m -2 in summer species) of several planktivorous fish, such as Jenynsia lineata (Jenyns, 1842), Hyphessobrycon wajat Almiro ´n & Casciotta, 1999, Gambusia holbrooki Girard, 1859 (introduced species), C. decemmaculatus, and Ramnogaster melanostoma (Eigenmann, 1907). We found that rotifers Copepoda nauplii had a peak density during the early spring when lower fish density or activity was expected.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Grazing impacts on phytoplankton in South American water ecosystems: a synthesis

Frau

2021

Hydrobiologia

Self Cite

View full text Add to dashboard Cite

The role of grazing as a controlling factor of phytoplankton has an extensive debate in the literature. In this article, five mechanisms that have been explored as potential controlling factors of grazing influence on phytoplankton in South America are discussed and compared with other latitudinal works. The temperature impact on zooplankton is not conclusive, with planktivorous fish appearing as the main controlling factor of zooplankton size ranges. Fish grazing effects on phytoplankton look despicable, but the impact of exotic filter-feeding fish remains controversial. Microphagous rotifers and Copepoda nauplii affect phytoplankton by selective size grazing, while large Cladocera and Copepoda adults can control phytoplankton when they reach high densities in the absence of fish. Both groups mainly feed on small sizes, with microzooplankton having a higher impact on very small phytoplankton. Some contradictory evidence arises for large colonial and filamentous algae. Exotic invasive filter-feeding bivalves are selective grazers in experimental approximations. Corbicula fluminea feeds on smaller particles, does not have taxonomic preferences, and has lower densities in nature than Limnoperna fortunei. Their effect on nature is not fully documented. In sum, several aspects still need deep scrutiny to fully understand the role of grazing on phytoplankton in South America.

show abstract

“…The presence of planktivorous fish proved advantageous for the growth of nanophytoplankton and picophytoplankton, as the fish predated on macrozooplankton. This factor ultimately led to an increase in numbers of phytoplankton by suppressing their predators, zooplankton [55]. Alternative situations were observed in eutrophic lakes of subtropical region where silver carp easily controlled the number of phytoplankton and boosted the density of Nano zooplankton [27].…”

Section: Higher Trophic Level Suppression Through Predationmentioning

confidence: 99%

Advantageous and Disadvantageous of Non Classical Biomanipulation

Amjad Yaqoob

2023

AOMB

View full text Add to dashboard Cite

In classical biomanipulation, piscivores fish is introduced to a water body which fed on planktivorous fish and causes an increase in the numbers of zooplankton and zooplankton by feeding on phytoplankton roots to reduction in algal blooms. In contrast, during non-classical biomanipulation piscivores fish is removed from the water body and planktivorous fish is introduced which fed on all kinds of plankton and led to improving the water quality parameters by reducing nuisance algae. Here, we examine the management of water quality parameters through non-classical biomanipulation by identifying problems and extract recommendations. Preference is given to non-classical biomanipulation due to certain hindrances with traditional biomanipulation such as planktivorous fish removal, increase in numbers of macrophyte and decrease in phosphorous (external and internal), respectively. In fact, non-classical biomanipulation can also be used to control algal blooms in tropical, highly productive lakes, where reduction in nutrient concentration is almost impossible. In spite of overlapping prey and predator spaces in closed environments, such as in tanks and ponds, similar results of non-classical biomanipulation were also obtained in lake ecosystems as well. Non-classical biomanipulation changed the community composition of phytoplankton at the start of trial in both enclosed water bodies and lakes. In our review of 30 studies, 63% of studies demonstrated successful control of phytoplankton with non-classical biomanipulation. Microcystis blooms were controlled efficiently by two planktivorous fish, bighead carp (Hypophthalmichthys nobilis) and silver carp (Hypophthalmichthys molitrix), in Lakes Qiandaohu and Donghu, respectively. Eutrophic waters that lack sufficient concentration of macrozooplankton can be effectively managed through planktivorous fishes, such as bighead and silver carp. Non-classical biomanipulation is confirmed as an effective tool for the control of those nuisance algal blooms that cannot be controlled efficiently by large bodied herbivorous zooplankton while ineffective with blooms of nanophytoplankton species.

show abstract

Assessing the relevance of top-down and bottom-up effects as phytoplankton structure drivers in a subtropical hypereutrophic shallow lake

Cited by 18 publications

References 55 publications

Endoparasites of Hypostomus commersoni (Siluriformes, Loricariidae) from two shallow lagoons, Argentina

Endoparasites of Hypostomus commersoni (Siluriformes, Loricariidae) from two shallow lagoons, Argentina

Grazing impacts on phytoplankton in South American water ecosystems: a synthesis

Advantageous and Disadvantageous of Non Classical Biomanipulation

Contact Info

Product

Resources

About